ASTM A656 Type 7 Grade 690 ASTM A656/A656M
Low-Alloy High-Strength plate steel Product Introduction
ASTM A656 Type 7 Grade 690 ASTM A656/A656M offers excellent mechanical properties, high strength, weldability and notch toughness. This makes it a popular option for the most demanding applications. The hardenability of the steel plate is also quite impressive, making the steel the ideal choice for various industrial applications. In addition, it has superior atmospheric corrosion resistance for many environments, making it even more desirable for many applications.
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Application: High-strength low-alloy hot-rolled structural steel plate with improved forgeability.
Heat treated: 1863°C - 1395°C.
Low-Alloy High-Strength plate Product Details
ASTM A656 Type 7 Grade 690 ASTM A656/A656M Chemical Element
The main chemical composition of ASTM A656 Type 7 Grade 690 ASTM A656/A656M includes carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, and molybdenum. Because of its high strength, ASTM A656 Type 7 Grade 690 ASTM A656/A656M is most suitable for structural applications that require high strength. It is also used in applications requiring robust weldability, such as bridge construction and heavy structural components.
What is the chemical composition of ASTM A656 Type 7 Grade 690 ASTM A656/A656M? For ASTM A656 Type 7 Grade 690 ASTM A656/A656M element content, please contact us.
| Element | Min | Max | Similar |
|---|---|---|---|
| C | - | 0.1800 | - |
| Mn | - | 1.6500 | - |
| P | - | 0.0250 | - |
| S | - | 0.0300 | - |
| Si | - | 0.6000 | - |
| V | - | 0.1500 | - |
| N | - | 0.0300 | - |
| Nb | - | 0.1000 | - |
| S | - | 0.0350 | - |
| Nb | - | 0.1000 | - |
ASTM A656 Type 7 Grade 690 ASTM A656/A656M Mechanical Properties
ASTM A656 Type 7 Grade 690 ASTM A656/A656M properties, ASTM A656 Type 7 Grade 690 ASTM A656/A656M Mechanical Properties, ASTM A656 Type 7 Grade 690 ASTM A656/A656M hardness, ASTM A656 Type 7 Grade 690 ASTM A656/A656M tensile strength, yield strength
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 834 (≥) | 822 (≥) | 24 | 12 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 144 |
ASTM A656 Type 7 Grade 690 ASTM A656/A656M Physical Properties
ASTM A656 Type 7 Grade 690 ASTM A656/A656M is available in several types, such as Type 10 (normalizing rolling), Type 11 (tempered rolling), Type 12 (thermo-mechanical controlled processing) and Type 13 (thermal treatment). Depending on the application, various types of steel plates can be ordered to meet specific requirements. Additionally, additional elements can be added to the ASTM A656 Type 7 Grade 690 ASTM A656/A656M plate to adapt it to the desired application.
The physical properties of ASTM A656 Type 7 Grade 690 ASTM A656/A656M include high strength, low weight, durability, ductility and resistance to corrosion. Steel, as we all know, offers great strength though it is light in weight. In fact, the ratio of strength to weight for steel is the lowest than any other building material available to us.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 14 | - | - | 0.22 | - | |||
| 631 | 851 | - | 42.3 | 312 | - | ||
| 978 | - | 31 | 41.2 | 324 | 123 |
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